public override string GenerateShaderForOutput(int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar)
{
if (dataCollector.PortCategory == MasterNodePortCategory.Vertex || dataCollector.PortCategory == MasterNodePortCategory.Tessellation)
{
UIUtils.ShowNoVertexModeNodeMessage(this);
return("0");
}
if (m_outputPorts[0].IsLocalValue(dataCollector.PortCategory))
{
return(GetOutputColorItem(0, outputId, m_outputPorts[0].LocalValue(dataCollector.PortCategory)));
}
if (!(dataCollector.IsTemplate && dataCollector.IsSRP))
{
dataCollector.AddToIncludes(UniqueId, Constants.UnityCgLibFuncs);
}
if (!dataCollector.IsTemplate || dataCollector.TemplateDataCollectorInstance.CurrentSRPType != TemplateSRPType.HD)
{
dataCollector.AddToUniforms(UniqueId, "uniform sampler2D _CameraDepthTexture;");
}
string screenPos = string.Empty;
string screenPosNorm = string.Empty;
InputPort vertexPosPort = GetInputPortByUniqueId(1);
if (vertexPosPort.IsConnected)
{
string vertexPosVar = "vertexPos" + OutputId;
GenerateInputInVertex(ref dataCollector, 1, vertexPosVar, false);
screenPos = GeneratorUtils.GenerateScreenPositionForValue(vertexPosVar, OutputId, ref dataCollector, UniqueId, m_currentPrecisionType, !dataCollector.UsingCustomScreenPos);
screenPosNorm = GeneratorUtils.GenerateScreenPositionNormalizedForValue(vertexPosVar, OutputId, ref dataCollector, UniqueId, m_currentPrecisionType, !dataCollector.UsingCustomScreenPos);
}
else
{
screenPos = GeneratorUtils.GenerateScreenPosition(ref dataCollector, UniqueId, m_currentPrecisionType, !dataCollector.UsingCustomScreenPos);
screenPosNorm = GeneratorUtils.GenerateScreenPositionNormalized(ref dataCollector, UniqueId, m_currentPrecisionType, !dataCollector.UsingCustomScreenPos);
}
string screenDepth = TemplateHelperFunctions.CreateDepthFetch(dataCollector, screenPos);
if (m_convertToLinear)
{
if (dataCollector.IsTemplate && dataCollector.IsSRP)
{
screenDepth = string.Format("LinearEyeDepth({0},_ZBufferParams)", screenDepth);
}
else
{
screenDepth = string.Format("LinearEyeDepth({0})", screenDepth);
}
}
else
{
screenDepth = string.Format("({0}*( _ProjectionParams.z - _ProjectionParams.y ))", screenDepth);
}
string distance = GetInputPortByUniqueId(0).GeneratePortInstructions(ref dataCollector);
dataCollector.AddLocalVariable(UniqueId, "float screenDepth" + OutputId + " = " + screenDepth + ";");
string finalVarName = "distanceDepth" + OutputId;
string finalVarValue = string.Empty;
if (dataCollector.IsTemplate && dataCollector.IsSRP)
{
finalVarValue = "abs( ( screenDepth" + OutputId + " - LinearEyeDepth( " + screenPosNorm + ".z,_ZBufferParams ) ) / ( " + distance + " ) )";
}
else
{
finalVarValue = "abs( ( screenDepth" + OutputId + " - LinearEyeDepth( " + screenPosNorm + ".z ) ) / ( " + distance + " ) )";
}
if (m_saturate)
{
finalVarValue = string.Format("saturate( {0} )", finalVarValue);
}
dataCollector.AddLocalVariable(UniqueId, m_currentPrecisionType, WirePortDataType.FLOAT, finalVarName, finalVarValue);
m_outputPorts[0].SetLocalValue(finalVarName, dataCollector.PortCategory);
return(GetOutputColorItem(0, outputId, finalVarName));
}
